/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 86187
 * Date: 2022-04-22
 * Time: 20:20
 */

//Scanner scan = new Scanner(System.in);

import java.util.Scanner;

public class Arrays2 {

    public static void main(String[] args) {

        int a = 10;
        int b = 20;
        System.out.println(a-b);
        System.out.println(a+b);



    }
}
